How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 9/13100.0*Chance in playoffs100.0*Average seed
Red Bulls 0 FC Dallas 1 -4.4
-0.3
Rapids 1 Earthquakes 2 4.1
D.C. United 2 Revolution 2 *0.2
Crew 4 Wizards 0 -0.1
Week of 9/20100.0*Chance in playoffs100.0*Average seed
FC Dallas 1 Revolution 2 -28.7
-0.3
Red Bulls 0 Crew 1 -9.3
-0.1
Revolution 3 Red Bulls 2 -3.3
-0.1
Wizards 5 Rapids 2 0.0
Week of 9/28100.0*Chance in playoffs100.0*Average seed
D.C. United 1 Red Bulls 3 In
0.8

* A starred outcome is not statistically different from zero (< 3σ), so it might actually have no effect.

Points  (Full Screen)
Chance Will Make Playoffs  (Full Screen)